Clanker was a crew member serving aboard the Flying Dutchman, under the command of Captain Davy Jones. He is one of 6 senary antagonists in Dead Man's Chest and a minor antagonist in At World's End.
When William Turner was sent to settle Captain Jack Sparrow's debt with Davy Jones, Clanker was one of the crewmen who confronted him aboard a scuttled ship, wielding a length of chain-shot. He later played a game of Liar's dice with Maccus and Koleniko prior to Turner's game with Davy Jones
Clanker was one of the crewmen that assisted in killing the remaining crew of the Edinburgh Trader following the attack of the Kraken (Pirates of the Caribbean) , which Clanker helped summon. He was one of the crewmen chosen to recover the Dead Man's Chest from Isla Cruces, and fought Ragetti. He later fought in the battle of Calypso's maelstrom, into which he was cast when Jack Sparrow stole his pistol, pushing him from a rope above the Flying Dutchman sending him falling into the maelstrom.
After Davy Jones was killed, he along with other crewmembers returned to their human form.